package com.atguigu.eduservice.controller;


import com.atguigu.commonutils.R;
import com.atguigu.eduservice.entity.EduTeacher;
import com.atguigu.eduservice.entity.vo.TeacherQuery;
import com.atguigu.eduservice.service.EduTeacherService;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.apache.poi.ss.formula.functions.T;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;

import java.util.HashMap;
import java.util.List;

/**
 * <p>
 * 讲师 前端控制器
 * </p>
 *
 * @author testjava
 * @since 2020-11-09
 */
@Api(description="讲师管理")
@RestController
@RequestMapping("/eduservice/teacher")
public class EduTeacherController {

    //访问地址: http://localhost:8001/eduservice/teacher/findAll
    //把service注入
    @Autowired
    private EduTeacherService teacherService;

    //1查询讲师表所有数据
    //rest风格

    @ApiOperation(value = "所有讲师列表")
    @GetMapping("findAll")
    public R findAllTeacher(){
        //调用service的方法实现查询所有的操作
        List<EduTeacher> list = teacherService.list(null);
        return  R.ok().data("items",list);
    }

    @ApiOperation(value = "根据ID删除讲师")
    @DeleteMapping("{id}")
    public R removeById(
            @ApiParam(name = "id", value = "讲师ID", required = true)
            @PathVariable String id){
        boolean flag = teacherService.removeById(id);
        if (flag){
            return R.ok();
        }else{
            return R.error();
        }
    }

    @ApiOperation(value = "分页讲师列表")
    @GetMapping("pageTeacher/{current}/{limit}")
    public R pageListTeacher(
            @ApiParam(name = "current", value = "当前页码", required = true)
            @PathVariable long current,
            @ApiParam(name = "limit", value = "每页记录数", required = true)
            @PathVariable long limit){


        Page<EduTeacher> pageTeacher = new Page<>(current, limit);
        teacherService.page(pageTeacher,null);
        long total = pageTeacher.getTotal();
        List<EduTeacher> records = pageTeacher.getRecords();

//        方法一
//        HashMap map = new HashMap();
//        map.put("total",total);
//        map.put("rows",records);
//        return R.ok().data(map);
//        方法二
        return R.ok().data("total",total).data("rows",records);
    }


    @PostMapping("pageTeacherCondition/{current}/{limit}")
    public R pageTeacherCondition(
            @PathVariable long current,
            @PathVariable long limit,
            @RequestBody(required = false) TeacherQuery teacherQuery){
        //创建一个page对象
        Page<EduTeacher> pageTeacher = new Page<>(current, limit);
        //构建条件
        QueryWrapper<EduTeacher> wrapper = new QueryWrapper<>();
        String name = teacherQuery.getName();
        Integer level = teacherQuery.getLevel();
        String begin = teacherQuery.getBegin();
        String end = teacherQuery.getEnd();
        //判断条件之是否为空,如果不为空拼接条件
        if (!StringUtils.isEmpty(name)){
            //构建条件
            wrapper.like("name",name);
        }
        if (!StringUtils.isEmpty(level)){
            wrapper.eq("level",level);
        }
        if (!StringUtils.isEmpty(begin)){
            wrapper.ge("gmt_create",begin);
        }
        if (!StringUtils.isEmpty(end)){
            wrapper.le("gmt_create",end);
        }


        //调用方法实现条件查询分页
       teacherService.page(pageTeacher,wrapper);
        long total = pageTeacher.getTotal();
        List<EduTeacher> records = pageTeacher.getRecords();
        return R.ok().data("total",total).data("rows",records);
    }

    //添加讲师方法
    @PostMapping("addTeacher")
    public R addTeacher(@RequestBody EduTeacher eduTeacher){
        boolean save = teacherService.save(eduTeacher);
        if (save){
            return R.ok();
        }else {
            return R.error();
        }
    }
}

